This is so stupid. If you have a problem with your employer, either you quit or they fire, you move on, full stop. If you're in a relationship and someone isn't happy enough with you and breaks up with you, the dignified response is NOT to key their car. I see employment relationships mostly the same way. Either it works (for both) or doesn't (for either or both ends).
And having switched jobs quite a few times, the next one is always better for you, regardless.
And having switched jobs quite a few times, the next one is always better for you, regardless.